开启方式对短舱泄压门性能特性影响

王晨臣; 冯诗愚; 彭孝天; 邓阳; 陈俊

doi:10.13224/j.cnki.jasp.2019.05.012

开启方式对短舱泄压门性能特性影响

doi: 10.13224/j.cnki.jasp.2019.05.012

1.
南京航空航天大学航空学院飞行器环境控制与生命保障工业和信息化部重点实验室,南京 210016；2.中国航空发动机集团有限公司商用航空发动机有限责任公司,上海 200241
2.
南京航空航天大学航空学院飞行器环境控制与生命保障工业和信息化部重点实验室,南京 210016
3.
中国航空发动机集团有限公司商用航空发动机有限责任公司,上海 200241

基金项目: 南京航空航天大学研究生创新基地(实验室)开放基金(kfjj20180108); 江苏高校优势学科建设工程基金

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出版历程
- 收稿日期: 2018-10-02
- 刊出日期: 2019-05-28

Influence of opening mode on performance characteristics of nacelle pressure relief door

摘要

摘要: 对不同开启方式下短舱泄压门性能特性进行了数值模拟,并根据NACA TN4007报告中的试验数据验证了数值计算的正确性,在此基础上,研究了在不同马赫数(Ma=0.5,0.7,0.9)和不同压力比(Rp=1.2,1.4,1.6)下开启方式对泄压门排放性能和受力特性的影响。计算结果表明:在一定马赫数下,泄压门排放系数随压力比的增加而增加；而在一定压力比下,泄压门排放系数随马赫数的升高而减小；在开启方式2下泄压门排放系数略优于开启方式1下,由于开启方式1下泄压门平行于来流,因此开启方式1下泄压门推力系数远小于开启方式2下,而泄压门力矩系数高于开启方式2下,约为开启方式2下的2倍。
- 短舱 /
- 泄压门 /
- 开启方式 /
- 排放性能 /
- 受力特性 /
- 压力比 /
- 马赫数
Abstract: The performance of nacelle pressure relief door under different opening modes was numerically simulated, and the correctness of the numerical calculation was verified according to the experimental data in the NACA TN4007 report. On this basis, different Mach numbers (Ma=0.5, 0.7 and 0.9) and pressure ratios (Rp=1.2, 1.4 and 1.6) were compared for the effects on the discharge performance and force characteristics of the pressure relief door. The calculation results showed that under a certain Mach number, the discharge flow coefficient Cdr increased with the increase of pressure ratio. Under a certain pressure ratio, the discharge flow coefficient Cdr decreased with the increase of Mach number. In opening mode 2, discharge flow coefficient of the pressure relief door was slightly better than in opening mode 1. Since the pressure relief door was parallel to the flow in opening mode 1, the pressure relief coefficient of the pressure relief door was much smaller than that of opening mode 2, and the pressure coefficient of the pressure relief door was higher than that of opening mode 2, about twice of opening mode 2.
- nacelle /
- pressure relief door /
- opening mode /
- discharge performance /
- force characteristics /
- pressure ratio /
- Mach number

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